I was having the same problems as sweet9 as well. xinetd wudn't start properly, and imap keeps failing as well. based on what sweet9 wrote here, i checked the /etc/sysconfig/network file on another server and found the necessary things to insert /etc/sysconfig/network on the problematic server.

just edit /etc/sysconfig/network with the following, inserting your own values where necessary: